1?Pet Training Buttons: You can use the buttons to record specific words or phrases, such as drinking water, playing, eating etc. Show the pet how to operate and your pet will learn how to use the buttons to express its needs and communicate with you. 2?Clear Recording: You can customize the recording button to record the sound you want for up to 30 seconds, and the recording sound effect is pretty good, which sounds clear and vivid. 3?Portable and Durable: The recording button is made from sturdy material, which is safe and durable, and there are 4 different color buttons can be used as options for different training. 4?Easy to Use: These buttons are easy to use and set up, just press the REC button to record your sound, then press the top button to play the recorded sound. 5?Wide Applicability: Recording buttons can also be used as parent child interactive toys or educational toys for children's language enlightenment. This button provides a lot of unexpected entertainment.